Show dns cache

DNS COMMANDS

show dns

This command displays the configuration of the DNS server.

Command Mode

Privileged Exec

Example

Console#show dns Domain Lookup Status:

DNS enabled Default Domain Name:

sample.com Domain Name List:

sample.com.jp

sample.com.uk Name Server List:

192.168.1.55

10.1.0.55

Console#

This command displays entries in the DNS cache.

Command Mode

Privileged Exec

Example

Console#show dns cache
NO	FLAG	TYPE	IP	TTL	DOMAIN
0	4	CNAME	10.2.44.96	893	pttch_pc.accton.com.tw
1	4	CNAME	10.2.44.3	898	ahten.accton.com.tw
2	4	CNAME	66.218.71.84	298	www.yahoo.akadns.net
3	4	CNAME	66.218.71.83	298	www.yahoo.akadns.net
4	4	CNAME	66.218.71.81	298	www.yahoo.akadns.net
5	4	CNAME	66.218.71.80	298	www.yahoo.akadns.net
6	4	CNAME	66.218.71.89	298	www.yahoo.akadns.net
7	4	CNAME	66.218.71.86	298	www.yahoo.akadns.net
8	4	ALIAS	POINTER TO:7	298	www.yahoo.com
Console#

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Image 409

SMC Networks SMC8624/48T manual Show dns cache, This command displays the configuration of the DNS server

Contents

TigerSwitch 10/100/1000 Page TigerSwitch 10/100/1000 Management Guide Trademarks Limited Warranty Limited Warranty Contents Contents Contents Command Line Interface Vii Viii Contents Contents Contents Xii Xiii Xiv Contents Xvi Tables Xvii Xviii Figures 61. Displaying Vlan Information by Port Membership Xix Figures Key Features Key Features Description of Software Features Description of Software Features Introduction Description of Software Features Introduction System Defaults System Defaults System Defaults Dhcp Introduction Configuration Options Connecting to the Switch Required Connections Connecting to the Switch Remote Connections Basic ConfigurationConsole Connection Setting Passwords Manual Configuration Setting an IP Address Dynamic Configuration Initial Configuration Community Strings Enabling Snmp Management Access Initial Configuration Trap Receivers Saving Configuration Settings Managing System Files Managing System Files Initial Configuration Using the Web Interface Configuring the Switch Configuring the Switch Home Navigating the Web Browser Interface Panel Display Configuration Options Main Menu Main Menu ACL Lacp STA 141 Vlan ID DNS Field Attributes Displaying System Information CLI Specify the hostname, location and contact information System Information Main Board Displaying Switch Hardware/Software VersionsManagement Software Switch Information Web Click System, Switch Information Displaying Bridge Extension Capabilities CLI Enter the following command Setting the Switch’s IP AddressWeb Click System, Bridge Extension Command Attributes Manual IP Configuration Dhcp IP Configuration Using DHCP/BOOTP 288 Downloading System Software from a Server Managing Firmware Operation Code Image File Transfer Saving or Restoring Configuration Settings 10. Downloading Configuration Settings from a Server Downloading Configuration Settings from a Server CLI Use the reload command to restart the switch Resetting the System Configuring Sntp Setting the System Clock 13. Sntp Configuration 14. Setting the Time Zone Setting the Time Zone Simple Network Management Protocol Setting Community Access Strings Specifying Trap Managers and Trap Types Access Mode 16. Specifying Trap Managers and Trap Types Configuring the Logon Password User Authentication 17. Configuring the Logon Password Configuring Local/Remote Logon Authentication Command Usage Radius Settings 18. Setting Local, Radius and Tacacs Authentication Tacacs Settings Configuring Https Https Support 19. Https Settings Replacing the Default Secure-site Certificate Configuring the Secure Shell Configuring the Switch Generating the Host Key Pair Field Attributes 20. SSH Host-Key Settings SSH server includes basic settings for authentication Configuring the SSH Server 21. SSH Server Settings Configuring Port Security Command Usage 22. Configuring Port Security Configuring 802.1x Port Authentication 802.1x client Radius server Displaying 802.1x Global Settings 23 .1x Information 111 Configuring 802.1x Global Settings 24 .1x Configuration Configuring Port Authorization Mode Authorized 25 .1x Port Configuration Statistical Values Displaying 802.1x Statistics1x Statistics 26 .1x Statistics Configuring Access Control Lists Access Control ListsCLI This example displays the 802.1x statistics for port Setting the ACL Name and Type CLI This example creates a standard IP ACL named bill 27. Naming and Choosing ACLs 28. Configuring Standard IP ACLs Configuring a Standard IP ACL Command Attributes Configuring an Extended IP ACL Command Attributes Access Control Lists 29. Configuring Extended IP ACLs 120 Configuring a MAC ACL Command Attributes Command Usage 30. Configuring MAC ACLs Command Usage Configuring ACL MasksSpecifying the Mask Type This mask defines the fields to check in the IP header Configuring an IP ACL Mask Configuring the Switch 32. Configuring an IP based ACL This mask defines the fields to check in the packet header Configuring a MAC ACL Mask 33. Configuring a MAC based ACL 148 Binding a Port to an Access Control List 34. Mapping ACLs to Port Ingress/Egress Queues Filtering Management Access 35. Filtering Management Access Displaying Connection Status Port ConfigurationField Attributes Web Web Click Port, Port Information or Trunk Information Field Attributes CLI Current status 178 CLI This example shows the connection status for Port Configuring Interface Connections Port Configuration Creating Trunk Groups 37. Configuring Port Attributes Command Usage 38. Static Trunk Configuration Statically Configuring a Trunk Command Usage 189 Enabling Lacp on Selected Ports Command Usage 39. Lacp Port Configuratio 190 Command Attributes 40. Lacp Aggregation Port Configuration Counter Information Displaying Lacp Port CountersYou can display statistics for Lacp protocol messages Lacp Port Counter Information 41. Displaying Lacp Port Counters Information Internal Configuration Information Displaying Lacp Settings and Status for the Local SideLacp Settings Link Passive 1 Active 42. Displaying Lacp Port Information Neighbor Configuration Information Displaying Lacp Settings and Status for the Remote SideLacp Remote Side Settings 43. Displaying Remote Lacp Port Information 100 101 Setting Broadcast Storm Thresholds 44. Enabling Port Broadcast Control 102 103 Configuring Port Mirroring 104 Configuring Rate Limits 105 Command Attribute 106 Showing Port Statistics Port Statistics 107 108 Rmon Statistics 109 47. Displaying Port Statistics 110 48. Displaying Etherlike and Rmon Statistics 111 Setting Static Addresses Address Table Settings112 CLI This example shows statistics for port 49. Mapping Ports to Static Addresses 113 114 Displaying the Address Table 115 Changing the Aging TimeCLI This example sets the aging time to 400 seconds 116 Spanning Tree Algorithm Configuration 117 Displaying Global Settings 118 119 52. Displaying the Spanning Tree Algorithm 120 Global settings apply to the entire switch Configuring Global Settings121 122 Basic Configuration of Global Settings 123 Root Device Configuration 124 Configuration Settings for Rstp 125 53. Configuring the Spanning Tree Algorithm 126 Displaying Interface Settings Rules defining port status are 127 AD B 128 129 130 Configuring Interface SettingsCLI This example shows the STA attributes for port 131 132 133 Configuring Multiple Spanning TreesCLI This example sets STA attributes for port 134 Vlan ID Vlan to assign to this selected MST instance. Range 135 136 137 Displaying Interface Settings for Mstp 138 139 Configuring Interface Settings for Mstp 140 58. Mstp Port Configuration Overview Vlan Configuration141 CLI This example sets the Mstp attributes for port Assigning Ports to VLANs 142 143 144 Forwarding Tagged/Untagged Frames 145 CLI This example enables Gvrp for the switch Enabling or Disabling Gvrp Global SettingDisplaying Basic Vlan Information 146 Displaying Current VLANs Command Attributes Web147 Web Click VLAN, 802.1Q VLAN, Basic Information 148 Command Attributes CLI 149 Creating VLANs CLI This example creates a new Vlan 150 151 Adding Static Members to VLANs Vlan Index 152 63. Configuring Vlan Port Attributes 153 Adding Static Members to VLANs Port Index 154 Configuring Vlan Behavior for Interfaces 155 156 157 65. Configuring Vlan Ports CLI This example enables private VLANs Configuring Private VLANs158 Enabling Private VLANs Configuring Uplink and Downlink Ports Configuring Protocol-Based VLANs159 160 Configuring Protocol GroupsCreate a protocol group for one or more protocols Mapping Protocols to VLANs 161 69. Mapping Protocols to VLANs 162 Setting the Default Priority for Interfaces Class of Service Configuration163 164 CLI This example assigns a default priority of 5 to port 165 Mapping CoS Values to Egress QueuesEgress Queue Priority Mapping 10. CoS Priority Levels 166 71. Configuring Ports and Trunks for Class of Service 167 Selecting the Queue Mode 168 Setting the Service Weight for Traffic Classes 169 Mapping Layer 3/4 Priorities to CoS Values 170 Selecting IP Precedence/DSCP Priority 171 Mapping IP Precedence11. IP Precedence Prioruty 172 75. Mapping IP Precedence to Class of Service Values 173 Mapping Dscp Priority 174 76. Mapping IP Dscp Priority to Class of Service Values 175 Mapping IP Port Priority 78. IP Port Priority Mapping 176 177 Mapping CoS Values to ACLs13. CoS to ACL Mapping 178 Changing Priorities Based on ACL Rules 179 79. Changing Priorities Based on ACL Rules 180 181 Multicast Filtering Layer 2 Igmp Snooping and Query Configuring Igmp Snooping and Query Parameters182 183 184 80. Configuring Internet Group Management Protocol 185 Command AttributesDisplaying Interfaces Attached to a Multicast Router Specifying Static Interfaces for a Multicast Router 186 187 Displaying Port Members of Multicast Services 188 Assigning Ports to Multicast Services 84. Specifying Multicast Port Membership 189 Configuring General DNS Server Parameters Configuring Domain Name Service190 191 192 85. Configuring DNS 193 Configuring Static DNS Host to Address Entries 86. Mapping IP Addresses to a Host Name 194 195 Displaying the DNS Cache Web Select DNS, Cache 196 Accessing the CLI Using the Command Line Interface Telnet Connection Using the Command Line Interface This section describes how to enter CLI commands Entering CommandsKeywords and Arguments Minimum Abbreviation Getting Help on Commands Command Completion Showing Commands Using Command History Negating the Effect of CommandsPartial Keyword Lookup Exec Commands Understanding Command ModesCommand Modes Configuration Commands Mode Command Prompt Configuration Commands Keystroke Function Command Line Processing Command Group Index Command Groups 255 Line Command Syntax Line Commands Command Mode Default SettingLine Syntax Line console vty Related Commands LoginSyntax Login local no login Username 4-35 password PasswordSyntax Password 0 7 password no password No password is specified Login 4-16password-thresh4-19 Exec-timeoutSyntax Exec-timeout seconds no exec-timeout CLI No timeout Telnet 10 minutes To set the timeout to two minutes, enter this command Password-threshSyntax Password-thresh threshold no password-thresh Default value is three attempts Syntax Silent-time seconds no silent-time Silent-time Databits To specify 7 data bits, enter this commandSyntax Databits 7 8 no databits Seven data bits per character Eight data bits per character Parity To specify no parity, enter this commandSyntax Parity none even odd no parity None No parity Even Even parity Odd Odd parity Speed To specify 57600 bps, enter this commandSyntax Speed bps no speed Auto Disconnect StopbitsSyntax Stopbits 1 Syntax Disconnect session-id Syntax Show line console vty Show line Enable General CommandsGeneral Commands Syntax Enable level Disable Enable password DisableNormal Exec None Show history Configure Reload This command restarts the system This example shows how to reset the switch This command resets the entire systemThis command returns to Privileged Exec mode End Exit This command exits the configuration programQuit Any This example shows how to quit a CLI session System Management CommandsSystem Mangement Commands Device Designation Commands Device Designation CommandsPrompt Syntax Prompt string no prompt User Access Commands User Access CommandsHostname Syntax Hostname name no hostname Username Default is level Default password is super Enable password 10. IP Filter Commands IP Filter Commands All addresses Management Show management 11. Web Server Command Web Server Commands Syntax No ip http server Default Setting Default Setting Command ModeIp http port Ip http server Ip http secure-server Syntax No ip http secure-server Default SettingIp http port Copy tftp https-certificate Ip http secure-port4-44 Copy tftp https-certificate Portnumber The UDP port used for HTTPS/SSL. Range Ip http secure-port443 Ip http secure-server4-42 12. Secure Shell Commands Secure Shell Commands 12. Secure Shell Commands System Management Commands Disabled Syntax Ip ssh server no ip ssh server Default SettingIp ssh server Syntax Ip ssh timeout seconds no ip ssh timeout Ip ssh timeoutIp ssh crypto host-key generate 4-52 show ssh Seconds Exec-timeout4-18 show ip ssh Ip ssh authentication-retriesShow ip ssh Delete public-key Ip ssh server-key sizeSyntax Delete public-key username dsa rsa Syntax Ip ssh crypto host-key generate dsa rsa Ip ssh crypto host-key generateDsa DSA key type Rsa RSA key type Generates both the DSA and RSA key pairs Ip ssh crypto zeroize Use this command to clear the host key from memory i.e. RAMIp ssh crypto zeroize 4-53 ip ssh save host-key4-54 Syntax Ip ssh crypto zeroize dsa rsa Show ip ssh Ip ssh save host-keySyntax Ip ssh save host-key dsa rsa 13. SSH Information Show ssh Syntax Show public-key user username host Show public-keyUsername Name of an SSH user. Range 1-8 characters RSA Shows all public keys 14. Event Logging Commands Event Logging CommandsSyntax No logging on Default Setting Logging on Logging history 4-59 clear logging Logging history Logging host Flash errors level 3 RAM warnings level 7Syntax No logging host hostipaddress Hostipaddress The IP address of a syslog server Syntax No logging facility type Logging facility Clear logging Logging trapSyntax Logging trap level no logging trap Syntax Clear logging flash ram Show logging Show loggingSyntax Show logging flash ram sendmail trap Following example displays settings for the trap function 15. Smtp Alert Commands Smtp Alert CommandsShow logging sendmail Syntax No logging sendmail host ipaddress Logging sendmail host Logging sendmail source-email Logging sendmail levelSyntax Logging sendmail level level Syntax Logging sendmail source-email email-address Syntax No logging sendmail destination-email email-address Logging sendmail destination-email Logging sendmail Syntax No logging sendmail Default SettingShow logging sendmail 16. Time Commands Time Commands Syntax Sntp server ip1 ip2 ip3 Sntp serverSntp poll 4-72 show sntp Sntp poll Related CommandsSntp client Syntax Sntp poll seconds no sntp poll Disabled Sntp broadcast client Syntax No sntp broadcast client Default SettingShow sntp Show sntp Clock timezone Calendar set This command displays the system clockShow calendar Syntax Show startup-config System Status Commands17. System Status Commands Command Usage Show running-config4-80 Show running-config Show startup-config4-77 Show system This command displays system information Show version Show users 18. Frame Size Commands Frame Size CommandsSyntax No jumbo frame Default Setting Jumbo frame 19. Flash/File Commands Flash/File Commands Copy Command Usage Following example shows how to download a configuration file Filename Name of the configuration file or image name This command deletes a file or imageDelete Syntax Dir boot-rom config opcode filename This command displays a list of files in flash memoryDir Dir Delete public-key4-51 Following example shows how to display all file information Whichboot Syntax Boot system boot-romconfig opcode filename Boot system Authentication Sequence Authentication CommandsDir 4-90 whichboot 20. Authentication Commands Local Authentication login 22. Radius Client Commands Username for setting the local user names and passwordsRadius Client Radius-server host 10.1.0.1 Radius-server portSyntax Radius-server port portnumber no radius-server port 1812 Radius-server retransmit Radius-server keySyntax Radius-server key keystring no radius-server key Show radius-server Radius-server timeout TACACS+ Client 23. TACACS+ Client CommandsTacacs-server host Hostipaddress IP address of a TACACS+ server Syntax Tacacs-server port portnumber no tacacs-server port Tacacs-server port Show tacacs-server Tacacs-server keySyntax Tacacs-server key keystring no tacacs-server key 24. Port Security Commands Port Security CommandsPort security Interface Configuration Ethernet Status Disabled Action None Maximum Addresses 25 .1x Port Authentication Commands 802.1x Port Authentication Authentication dot1x default Syntax Dot1x default Command Mode Dot1x defaultDefault Command Mode Dot1x max-req Interface Configuration DefaultDot1x port-control Force-authorized Syntax Dot1x re-authenticate interface Dot1x re-authenticateDot1x operation-mode Ethernet unit/port Dot1x timeout quiet-period Dot1x re-authenticationSyntax No dot1x re-authentication Command Mode Seconds The number of seconds. Range Dot1x timeout tx-period Dot1x timeout re-authperiod Show dot1x statistics interface interface Show dot1x State- Current state including initialize, reauthenticate Authenticator State Machine 113 Access Control Lists Access Control List Commands Access Control List Commands 26. Access Control List Commands Masks for Access Control Lists27. IP ACL Commands IP ACLs EXT-ACL Syntax No access-list ip standard extended aclname Access-list ip Standard ACL Permit, deny Ip access-group4-129 show ip access-list4-123 No permit deny tcp Access-list ip Extended ACL 122 Access-list ip mask-precedence Show ip access-listSyntax Show ip access-list standard extended aclname Syntax No access-list ip mask-precedence in out Mask IP ACL 4-125 ip access-group4-129 IP Mask Syntax No mask protocol 126 127 Syntax Show access-list ip mask-precedence in out Show access-list ip mask-precedence Syntax No ip access-group aclname in out Ip access-groupMask IP ACL Map access-list ip Show ip access-groupShow ip access-list4-123 This command shows the ports assigned to IP ACLs Queue cos-map4-260 Show map access-list ip Syntax Show map access-list ip interface Show map access-list ipMap access-list ip Match access-list ip Show marking Match access-list ipShow marking MAC ACLs 28. MAC ACL Commands Syntax No access-list mac aclname Access-list mac Any host destination destination address-bitmask Permit, deny MAC ACL MAC ACL Access-list mac mask-precedence Show mac access-listThis command displays the rules for configured MAC ACLs Syntax Show mac access-list aclname Mask MAC ACL Mask MAC ACL 4-140 mac access-group4-144 MAC Mask 142 Syntax Show access-list mac mask-precedence in out Show access-list mac mask-precedenceThis example creates an Egress MAC ACL Syntax Mac access-group aclname in out Mac access-groupShow mac access-list4-139 Map access-list mac Show mac access-groupThis command shows the ports assigned to MAC ACLs Syntax No map access-list mac aclname cos cos-value Queue cos-map4-260 Show map access-list mac Show map access-list macSyntax Show map access-list mac interface Match access-list mac ACL Information Show access-list29. ACL Information Show access-group Snmp CommandsThis command shows the port assignments of ACLs 30. Snmp Commands Syntax Snmp community string rorw no snmp community string Snmp community Snmp location Snmp contactSyntax Snmp contact string no snmp contact Syntax Snmp-server location text no snmp-server location Host Address None Snmp Version Snmp host Consoleconfig#snmp-server host 10.1.19.23 batman Syntax No snmp enable traps authentication link-up-down Snmp enable trapsIssue authentication and link-up-down traps Show snmp This command checks the status of Snmp communications 156 31. DNS Commands DNS Commands No static entries Ip hostThis example maps two address to a host name Ip domain-name Clear hostSyntax Clear host name Syntax Ip domain-name name no ip domain-name Syntax No ip domain-list name Ip domain-list Ip domain-name4-159 Server-address1- IP address of domain-name server Ip name-server Ip domain-lookup Syntax No ip domain-lookup Default SettingIp domain-name4-159 ip domain-lookup4-163 Ip domain-name4-159 ip name-server4-162 Show hosts This command displays entries in the DNS cache This command displays the configuration of the DNS serverShow dns Show dns cache Clear dns cache This command clears all entries in the DNS cache 167 32. Interface Commands Interface Commands Description InterfacePort-channel channel-idRange Syntax Description string no description Speed-duplex Interface Configuration Ethernet, Port ChannelFollowing example adds a description to port Negotiation Syntax No negotiation Default SettingNegotiation 4 -170 capabilities 4 Capabilities 4 -172speed-duplex 4 Following example configures port 11 to use autonegotiation Capabilities Flow control enabled Syntax No flowcontrol Default SettingFlowcontrol Negotiation 4 -170speed-duplex 4 -169 flowcontrol 4 Syntax Combo-forced-mode mode no combo-forced-mode Following example enables flow control on portCombo-forced-mode Negotiation 4 Capabilities flowcontrol, symmetric All interfaces are enabled Syntax No shutdown Default SettingFollowing example disables port Shutdown Switchport broadcast packet-rate Port-channel channel-idRange Default Setting This command clears statistics on an interfaceClear counters Following example clears statistics on port Show interfaces status This command displays the status for an interfaceSyntax Show interfaces status interface Shows the status for all interfaces Show interfaces counters This command displays interface statisticsSyntax Show interfaces counters interface Shows the counters for all interfaces 180 Syntax Show interfaces switchport interface Show interfaces switchportThis example shows the configuration setting for port Shows all interfaces Shows if acceptable Vlan frames include all types or 33. Mirror Port Commands Mirror Port CommandsInterface Configuration Ethernet, destination port Port monitor Unit Switch unit Port Port number This command displays mirror informationShow port monitor Syntax Show port monitor interface Following shows mirroring configured from port 6 to port Rate Limit Commands34. Rate Limit Commands Mbps Rate-limit 35. Link Aggregation Commands Link Aggregation Commands General Guidelines Guidelines for Creating Trunks Syntax Channel-group channel-idno channel-group Channel-groupChannel-id- Trunk index Range Current port will be added to this trunk Lacp Syntax No lacp Default Setting 191 32768 Lacp system-priority Lacp admin-keyEthernet Interface Syntax Lacp admin-key key no lacp admin-key Lacp admin-key Port ChannelInterface Configuration Port Channel Lacp port-priority Show lacp This command displays Lacp informationPort Channel all 197 198 199 36. Adress Table Commands Address Table Commands200 201 Mac-address-table staticMac-address- MAC address Vlan-id- Vlan ID Range Show mac-address-table Clear mac-address-table dynamic202 Mac-address- MAC address Mask Bits to match in the address 203 Mac-address-table aging-time 204 Show mac-address-table aging-time 37. Spanning Tree Commands Spanning Tree Commands205 Spanning-tree Spanning tree is enabled206 No spanning-tree 207 Spanning-tree modeRstp 208 209 Spanning-tree forward-time Spanning-tree max-age Spanning-tree hello-time210 211 Spanning-tree priority 212 Spanning-tree pathcost methodLong method This command limits the maximum transmission rate for BPDUs Spanning-tree mst-configurationSpanning-tree transmission-limit 213 Mst vlan MST Configuration214 215 Mst priority Name Switch’s MAC address216 Syntax Name name 217 RevisionRevision 4 Syntax Revision number 218 Max-hopsName 4 Syntax No spanning-tree spanning-disabled Default Setting Spanning-tree spanning-disabledSpanning-tree cost 219 220 Spanning-tree port-priorityPriority The priority for a port. Range 0-240, in steps 128 Spanning-tree edge-port Syntax No spanning-tree edge-port Default Setting221 Spanning-tree cost 4 Spanning-tree portfast Syntax No spanning-tree portfast Default Setting222 Spanning-tree portfast 4 223 Spanning-tree link-typeSpanning-treeedge-port 4 224 Spanning-tree mst cost Spanning-tree mst port-priority 4 225 226 Spanning-tree mst port-prioritySpanning-tree mst cost 4 Spanning-tree protocol-migration Port-channel channel-idRange Command Mode227 Syntax Spanning-tree protocol-migration interface 228 Show spanning-treeSyntax Show spanning-tree interface mst instanceid 229 This command shows the multiple spanning tree configuration Show spanning-tree mst configurationSyntax Show spanning-tree mst configuration Command Mode 230 38. Vlan Commands Vlan CommandsEditing Vlan Groups 231 Vlan database 232Show vlan 4 Vlan Database Configuration By default only Vlan 1 exists and is active233 Vlan 40. Configuring Vlan Interfaces Configuring Vlan Interfaces234 Interface vlan 235Syntax Interface vlan vlan-id Shutdown 4 Syntax Switchport mode trunk hybrid no switchport mode Switchport modeAll ports are in hybrid mode with the Pvid set to Vlan Switchport acceptable-frame-types 4 Switchport mode 4 Switchport acceptable-frame-types237 All frame types Syntax No switchport ingress-filtering Default Setting Switchport ingress-filtering238 239 Switchport native vlan 240 Switchport allowed vlan 241 Switchport forbidden vlanNo VLANs are included in the forbidden list 242 Displaying Vlan InformationShow vlan 41. Displaying Vlan Information 42. Protocol-based Vlan Commands Following example shows how to display information for Vlan243 No protocol groups are configured Protocol-vlan protocol-group Configuring Groups244 245 Protocol-vlan protocol-group Configuring InterfacesNo protocol groups are mapped for any interface Show protocol-vlan protocol-group 246Syntax Show protocol-vlan protocol-group group-id Group-id- Group identifier for a protocol group. Range 247 This shows protocol group 1 configured for IP over EthernetShow interfaces protocol-vlan protocol-group Mapping for all interfaces is displayed 248 43. Private Vlan CommandsPvlan No private VLANs are defined 249 This command displays the configured private VlanShow pvlan 44. Gvrp and Bridge Extension Commands Gvrp and Bridge Extension CommandsSyntax No bridge-ext gvrp Default Setting 250 Show bridge-ext 251 Show gvrp configuration Switchport gvrpSyntax No switchport gvrp Default Setting Syntax Show gvrp configuration interface 253 Garp timer Show garp timer 4 Show garp timerSyntax Show garp timer interface Shows all Garp timers Garp timer 4 Priority Commands45. Priority Commands 255 Switchport priority default Priority Commands Layer46. Priority Commands Layer 256 257 Syntax Queue mode strict wrr no queue mode Queue modeWeighted Round Robin 258 Queue bandwidth 259Show queue bandwidth 4 Queue cos-map 260 This command shows the current queue mode Show queue mode261 Show queue cos-map 4 262 This command shows the class of service priority mapShow queue bandwidth Show queue cos-map 47. Priority Commands Layer 3 Priority Commands Layer 3263 264 Syntax Map ip port no map ip port Default Setting 265 Syntax No map ip precedence Default Setting 266 List below shows the default priority mapping 267 Syntax No map ip dscp Default Setting 268 Map ip dscp Interface Configuration 269 Use this command to show the IP port priority mapShow map ip port Syntax Show map ip port interface 270 This command shows the IP precedence priority mapShow map ip precedence Syntax Show map ip precedence interface 271 This command shows the IP Dscp priority mapShow map ip dscp Syntax Show map ip dscp interface Igmp Snooping Commands Multicast Filtering Commands48. Multicast Filtering Commands 49. Igmp Snooping Commands 273 Following example enables Igmp snoopingIp igmp snooping No ip igmp snooping Ip igmp snooping vlan static 274 275 Following configures the switch to use Igmp VersionIp igmp snooping version Igmp Version Show ip igmp snooping 276Show mac-address-table multicast 50. Igmp Query Commands Layer Igmp Query Commands Layer277 278 Syntax No ip igmp snooping querier Default SettingIp igmp snooping querier Ip igmp snooping query-count 279 Following shows how to configure the query count toIp igmp snooping query-interval Ip igmp snooping query-max-response-time 4 280 Seconds The report delay advertised in Igmp queries. RangeIp igmp snooping query-max-response-time 281 Switch must use IGMPv2 for this command to take effectIp igmp snooping router-port-expire-time 51. Static Multicast Routing Commands Static Multicast Routing Commands282 Ip igmp snooping vlan mrouter 283 Displays multicast router ports for all configured VLANsShow ip igmp snooping mrouter Syntax Show ip igmp snooping mrouter vlan vlan-id Basic IP Configuration IP Interface Commands52. Basic IP Configuration commands 284 285 Interface Configuration VlanIp address IP address Netmask 286 This command submits a Bootp or Dhcp client requestIp dhcp restart Ip dhcp restart 4 Syntax Ip default-gateway gateway no ip default-gateway Ip default-gateway287 Show ip interface 288Show ip redirects 289 This command has no default for the hostPing Syntax Ping host count countsize size Interface 4 290 291 Authentication Software FeaturesDhcp Client Port Configuration Flow Control Additional Features Class of ServicePort Mirroring Rate Limits Standards Management FeaturesIn-Band Management Out-of-Band Management Management Information Bases Table B-1. Troubleshooting Chart Appendix B Troubleshooting Troubleshooting Glossary-1 Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Glossary-7 User Datagram Protocol UDP Glossary-8Virtual LAN Vlan XModem Index-1 Numerics Igmp Index-2 Snmp Snmp Index-3 Index-4 Page For Technical SUPPORT, Call

SMC Networks SMC8624/48T manual Show dns cache, This command displays entries in the DNS cache

Models: SMC8624/48T

show dns

This command displays the configuration of the DNS server.

Command Mode

Example

show dns cache

This command displays entries in the DNS cache.

Command Mode

Example

4-165